CHEMREX CX-948 - Rubber-Cal

1 CHEMREX CX-948 Gun-grade polyurethane adhesive/sealant for carpet tack stripsDescriptionCHEMREX CX-948 is a one-component, high-strength, high-solids, low-VOC polyurethane-based adhesive that is 3 timesstronger than conventionaladhesives. Its patentedtechnologically advanced formulaproduces a permanent overnightbond to almost any substrate. Use it in all page 3 for ml cartridges (24 per case, 44 cases per pallet)858 ml cartridges (12 per case, 48 cases per pallet)5 gallon pails (special order only)55 gallon drums (special order only)ColorLight brownShelf LifeC a rtridge: 1 year when stored at 75 F( 2 4 C) and 50% relative humidityBulk: 6 months when stored at 75 F(24 C) and 50% relative humidityStorageS t o re in unopened containersi nac o o l ,d rya rea awayf rom dire c tsunlight.

2 Storing at elevatedt e m p e r a t u res will reduce shelf cool or cold weather, storecontainers at room temperature forat least 24 hours before using. FeaturesBenefits VOC compliantEnvironmentally friendly Low odorReplaces solvent-based adhesives; safe to useindoors or out; no odor complaints Strong and versatilePermanently bonds together almost anything interior or exterior High solidsProvides excellent coverage NonshrinkingDoes not crack or lose bond High strengthStronger than many substrates it joins together; upto 3 times the strength of conventional adhesives Fast curingProvides permanent overnight bond Long open timeOffers flexibility in repositioning.

3 User friendly NonfreezingCan be applied to frozen, frost-free lumber Broad service temperature rangeSuitable for use in hot and cold environments Installation of carpet tack stripAllows power stretching of carpet in 2 hours NonflammableImproves worker safety Eligible for Leed s Points,Suitable for use in all 50 statesSouth Coast Bay Area compliant AFG-01 approvedMeets industry standardsPRODUCT Where to UseLOCATION Carpet tack strips Stair nosings High-solids subfloor adhesive Assembly of trucks, cabs and vans Interior and exterior Above gradeSUBSTRATE Treated and untreated lumber Brick Metal Concrete Masonry Most rigid building materialsHow to ApplySurface Preparation1.

4 S u rfaces must be structurally sound, dry, clean,and free of dirt, moisture, loose particles, oil,g rease, asphalt, tar, paint, wax, rust, waterpro o f i n gor curing and parting compounds, membranematerials or other substances that may affect .On metal surfaces, remove scale, rust or othercoatings to expose a bright white surface. Aluminumwindow frames are frequently coated with a clearlacquer that must be removed before the applicationof CHEMREX C X - 9 4 8 .3 .On concrete or stone, or other masonry surf a c e s ,clean by grinding, sandblasting or wire b rushing toexpose a sound surface free of contamination andl a i t a n c e.

5 4 .On wood surfaces, the surface must be cleanand sound. Scrape away paint to bare DataCompositionCHEMREX CX-948 is a high-solids polyurethaneadhesive that cures by reaction with atmospheric Adhesive meets or exceeds all requirements ofthe American Plywood Association SpecificationAFG-01, Adhesive for Gluing Plywood to Wood Framing. FHA Bulletin UM-60 ASTM D 3498 Typical PropertiesTest DataLAP SHEARPROPERTY RESULTSCOMMENTSPSI (MPA) CHEMREX PRODUCT DATACHEMREX CX-948 Chemlite to plywood341 ( )Plywood failureKynar to plywood 340 ( )Primer 733 on KynarExtruded polyurethane to plywood240 ( )32 minutes tack timeADHESIVE STRENGTH CHART24 hrs7 daysPlywood to Douglas fir 541 ( )858 ( )Plywood to treated lumber 861 ( )1,000 ( )Metal to Douglas fir 313 ( )313 ( )Foam to foam* 37 ( )37 ( )Oriented strandboard to 354 ( )544 ( )Oriented strandboard (wet)Wet Douglas fir to metal 217 ( )313 ( )Frozen Douglas fir to 360 ( )828 ( )

6 Frozen Douglas firPlywood to ( )222 ( )Note: Average data is from 10 specimens. Wet lumber is from overnight soak.*Foam tears apart at 37 psi ( MPa).Test results are typical values obtained under laboratory conditions. Reasonable variations can be CX-948 bonds well to most substrates;however, it is the user s responsibility to check theadhesion of the cured adhesive on specificsubstrates. For further information, contactTechnical by caulking gun or gloves during application is highlyrecommended. Once material has cured it cannotbe of the high strength of CHEMREX CX-948 , do not apply it as heavily as you would aconventional adhesive.

7 Cut the smallest possibleopening in the spout to render the appropriate-sizedbead. Be certain to fill all gaps between mechanical fasteners to hold materials inplace until adhesive has fully CHEMREX CX-948 forms a tenacious bondovernight. Firm set:1 2 hoursHandleable:16 hoursFull cure:7 daysAbove times are based on 75 F (24 C) and 50%relative humidity. Cure time varies withtemperature, humidity, and the porosity of thematerials UpClean all tools and equipment immediately afteruse with xylene, mineral spirits or must be mechanically Best Performance Wear gloves during application of adhesive;once cured, material cannot be removed.

8 Not intended for applications with continuous submersion. If adhesion to a substrate is questionable, a testapplication must be conducted. Make certain the most current versions ofproduct data sheet and MSDS are being used;call Customer Service (1-800-433-9517) to verifythe most current versions. P ro p e ra p p l i c a t i o ni st h ere s p o n s i b i l i t yo ft h eu s e i e l dv i s i t sb yDegussap e r s o n n e la ref o rt h ep u r p o s eo fm a k i n gt e c h n i c a lre c o m m e n d a t i o n so n l ya n dn o tf o rs u p e rv i s i n go rp ro v i d i n gq u a l i t yc o n t ro lo nt h ej o b s i t e .PROPERTY VALUEV iscosity,cps Up to 1,000,000 Solids, %90 Working or open time, hrs Up to 1 Weight,lbs/gal (kg/L) ( )Flash point, F ( C) 250 (121)Freeze/thaw stability Does not freezeShrinkage NoneService temperature, F ( C) Up to 250 (121)Slab temperature, F ( C)50 to 100 (10 to 38)SUBSTRATE CHEMREX CX-948 PSI (MPA)Health and SafetyCHEMREX CX-948 WarningCHEMREX CX-948 contains hydrotreated lightpetroleum distillate, talc, methylene bisphenyldiisocyanate, polymethylene polyphenyl isocyanateand silicon ,eye and dermatitis and allergic responses.

9 Potentialskin and/or respiratory sensitizer. Ingestion maycause irritation. Reports have associated repeatedor prolonged occupational overexposure to solventswith permanent brain, nervous system, liver andkidney damage. INTENTIONAL MISUSE BYDELIBERATELY OUT OF THE REACH OF CHILDREN. Avoidcontact with skin, eyes and clothing. Washthoroughly after handling. Avoid breathing only with adequate ventilation. Use imperviousgloves, eye protection and if the TLV is exceeded orused in a poorly ventilated area, use NIOSH/MSHA approved respiratory protection in accordance withapplicable Federal, state and local regulations. DONOT take internally.

10 Keep container closed. Emptycontainer may contain hazardous residues. All labelwarnings must be observed until container iscommercially cleaned or AidIn case of eye contact, flush thoroughly with waterfor at least 15 minutes. SEEK IMMEDIATE MEDICALATTENTION. In case of skin contact, wash affectedareas with soap and water. If irritation persists,SEEK MEDICAL ATTENTION. Remove and washcontaminated clothing. If inhalation causes physicaldiscomfort, remove to fresh air. If discomfortpersists or any breathing difficulty occurs, or ifswallowed, SEEK IMMEDIATE to Material Safety Data Sheet (MSDS) forfurther Content45 g/L or lbs/gal, less water and medical emergencies only,call ChemTrec (1-800-424-9300).